Dermatocarpon rivulorum (Arnold) Dalla Torre & Sarnth.
Die Flechten von Tirol: 504, 1902. Basionym: Endocarpon rivulorum Arnold - Verh. zool.-bot. Ges. Wien, 24: 249, 1874.
Synonyms:
Description: Thallus foliose-umbilicate, heteromerous, dorsiventral, monophyllous, rather large, (10-)13-30(-45) mm wide, attached by a central holdfast, rather thin, 0.1-0.35(-0.5) mm thick when wet. Upper surface brown to dark brown, epruinose, bulging; lower surface more or less concolorous with upper surface, distinctly reticulate, erhizinate. Upper cortex pseudoparenchymatous, of anticlinally arranged hyphae, often with a brown pigment near the surface, overlain by an epinecral layer of compressed hyphae; medulla white, I-; lower cortex colourless except the brown outermost part. Perithecia numerous, immersed in the thallus and scattered over almost the whole upper surface (appearing as black dots), the ostiole immersed or slightly projecting, without involucrellum. Exciple colourless except in the brown uppermost part; hamathecium of periphyses and periphysoids, interascal filaments absent; hymenial gel hemiamyloid. Asci 8-spored, clavate, I-, fissitunicate, the wall thickened above, with an ocular chamber, dehiscent by extrusion of an endotunica to form a delicate rostrum, Verrucaria-type. Ascospores simple to rarely 1(-4)-septate, (14-)16-21(-26) x (5.5-)6- 8(-10.5) µm. Pycnidia rather common, black, sometimes immersed in warts, multi-chambered. Conidia short-bacilliform. Photobiont chlorococcoid. Spot tests: cortex and medulla K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.
Growth form: Foliose, umbilicate
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Periodically submerged (e.g. in creeks)
Commonnes-rarity: (info)
Alpine belt: very rare
Subalpine belt: rare
Montane belt: very rare
Dry submediterranean belt: absent
Humid submediterranean belt: absent
Padanian area: absent
pH of the substrata:
1 2 3 4 5
Solar irradiation:
1 2 3 4 5
Aridity:
1 2 3 4 5
Eutrophication:
1 2 3 4 5
Poleotolerance:
0 1 2 3
Altitudinal distribution:
1 2 3 4 5 6
Rarity
absent
extremely rare
very rare
rare
rather rare
rather common
common
very common
extremely common
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Occurrence data
Predictive map
P.L. Nimis CC BY-SA 4.0
TSB 4608
Zahlbruckner A. 1926. Lichenes (Flechten). In: Engler A. (ed.): Die natürlichen Pflanzenfamilien. 2nd ed., vol 8, W. Engelmann, Leipzig, 270 pp.
P.L. Nimis CC BY-SA 4.0
TSB 4608
Growth form: Foliose, umbilicate
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Periodically submerged (e.g. in creeks)
Commonnes-rarity: (info)
Alpine belt: very rare
Subalpine belt: rare
Montane belt: very rare
Dry submediterranean belt: absent
Humid submediterranean belt: absent
Padanian area: absent
pH of the substrata:
| 1 | 2 | 3 | 4 | 5 |
Solar irradiation:
| 1 | 2 | 3 | 4 | 5 |
Aridity:
| 1 | 2 | 3 | 4 | 5 |
Eutrophication:
| 1 | 2 | 3 | 4 | 5 |
Poleotolerance:
| 0 | 1 | 2 | 3 |
Altitudinal distribution:
| 1 | 2 | 3 | 4 | 5 | 6 |
Rarity
absent
extremely rare
very rare
rare
rather rare
rather common
common
very common
extremely common
Loading data...
Occurrence data
Predictive map
P.L. Nimis CC BY-SA 4.0
TSB 4608
Zahlbruckner A. 1926. Lichenes (Flechten). In: Engler A. (ed.): Die natürlichen Pflanzenfamilien. 2nd ed., vol 8, W. Engelmann, Leipzig, 270 pp.
